Intel tau tshaj tawm qhov kev tso tawm ntawm SVT-AV1 1.0 (Scalable Video Technology AV1) lub tsev qiv ntawv, uas muab lwm txoj kev encoder thiab decoder rau AV1 video encoding hom, uas siv cov khoom siv sib xyaw ua ke muaj peev xwm pom hauv Intel niaj hnub CPUs. Lub hom phiaj tseem ceeb ntawm SVT-AV1 yog kom ua tiav ib theem ntawm kev ua tau zoo tsim nyog rau kev hloov pauv hauv video thiab siv hauv video-on-demand (VOD) cov kev pabcuam. Cov cai tau tsim los ua ib feem ntawm OpenVisualCloud qhov project, uas tseem tsim cov SVT-HEVC thiab SVT-VP9 encoders, thiab muab faib raws li BSD daim ntawv tso cai.
Txhawm rau siv SVT-AV1, koj xav tau yam tsawg kawg yog lub cim thib tsib Intel Core processor (Intel Xeon E5-v4 thiab CPUs tshiab). Encoding 10-ntsis AV1 ntws ntawm 4K zoo yuav tsum muaj 48 GB ntawm RAM, 1080p - 16 GB, 720p - 8 GB, 480p - 4 GB. Vim qhov nyuaj ntawm cov algorithms siv hauv AV1, encoding hom ntawv no yuav tsum muaj peev txheej ntau dua li lwm hom ntawv, uas tsis tso cai rau kev siv tus qauv AV1 encoder rau lub sijhawm hloov pauv. Piv txwv li, lub Tshuag encoder los ntawm AV1 project yuav tsum tau 5721, 5869 thiab 658 lub sij hawm ntau xam piv rau x264 ("main" profile), x264 ("siab" profile) thiab libvpx-vp9 encoders.
Ntawm cov kev hloov pauv hauv qhov kev tso tawm tshiab ntawm SVT-AV1:
- Ntxiv kev txhawb nqa rau S-thav duab (Switching Frames), nruab nrab thav duab uas nws cov ntsiab lus tuaj yeem kwv yees raws li yav dhau los decoded siv thav duab los ntawm tib lub yees duab hauv kev daws teeb meem siab dua. S-thav duab tso cai rau koj kom ua tau zoo ntawm compression ntawm cov kwj nyob.
- Ntxiv Constant Bit Rate (CBR) encoding tswj hom rau tsawg latency.
- Ntxiv kev txhawb nqa rau kev xa cov ntaub ntawv hais txog chroma subsampling txoj haujlwm.
- Ntxiv lub peev xwm hla denoising dluab tom qab ntxhib synthesis.
- Kev them nyiaj yug ceev ceev tau nthuav dav rau presets M0-M10.
- Kev siv cov kev xaiv "-fast-decode" tau yooj yim thiab thawj theem ntawm kev txiav txim siab ceev tau zoo.
- Qhov pom qhov zoo ntawm cov txiaj ntsig encoding tau raug txhim kho.
- Nco noj tau optimized.
- Ntxiv kev ua kom zoo ntxiv raws li AVX2 cov lus qhia.
Tau qhov twg los: opennet.ru